Tinella



A. E. SENTINELLA.

BOWDEN WIRE MECHANISM.

APPLICATION FILED JUNE II. 19m.

1,319,627 Patented 00 5.21, 1919.

I/roman UNITED STATES PATENT onmon.

ARTHUR EDWARD SENTINELLA, 0F WATERLOO ROAD, LONDON, ENGLAND, ASSIG'NOR TO BOWIDEN WIRE LIMITED, OF VVILLESDEN JUNCTION, ENGLAND.

BOWIDEN-WIRE MECHANISM.

Specification of Letters Patent.

Patented Oct. 21, 1919.

Application filed June 11, 1919. Serial No. 303,517.

To all whom it may concern Be it known that I, ARTHUR EDWARD SEN- TINELLA, a subject of His Majesty the King of England, and resident of WVaterloo Road, in the county of London, Kingdom of Eng land, have invented certain new and useful Improvements in or Connected with Bowden-Wire Mechanism, of which the following is a specification.

This invention relates to Bowden wire mechanism.

When using Bowden wire power transmitting mechanism, and when a pivoted lever or device is employed to operate said mechanism, it is, as is well known, very desirable and often necessary that at least the end of the inner member of the mechanism connected to and operated by said pivoted lever or device should always move in a straight path in order to reduce the strain upon, the wear of, and the liability to bending, distortion and breakage of the member to a minimum, .and in order to obtain a straight pull upon and a maximum actuation of the member with as little effort upon the lever ,or device as possible.

It is, therefore, the object of the invention to provide improved, simple and efficient apparatus by the use of which the above mentioned advantages are attained, and the difliculties sometimes experienced with this class of apparatus, in providing an efiicient operative connection between an operated member which moves in a straight line and a lever which operates said member and moves through an arc owing to its pivotal. mounting, are overcome.

The invention provides means for controlling Bowden wire mechanism, said means comprising an operating lever or device pivoted or hinged by one of its ends to a clamp, clip or support and operatively connected, intermediate its ends and through one or more intermediate links, to a member slidable in a guide which is carried by said clamp, clip or support and serves as an abutment for the outer member of the mecha nism, to which slidable member the inner member of the mechanism is secured, the arrangement being such that said inner member is moved in a straight path in the same direction as that of the movement of the slidable member.

The invention will now be described with reference to the acoonmanying drawings, in which Figure 1 is a side elevation showing a suitable construction of the improved de vice in duplicated form,

Fig. 2 is a front elevation of same, and

Fig. 3 is an enlarged sectional elevation on the line 33 of Fig. 2.

In the example shown, and in each unit, an operating lever ,or device a of bell-crank or rightangular formation is pivoted or hinged at Z) by its upper end 0 to a two part clamp cl, a clip or other support secured or formed on the handle-bar a, steering wheel or other convenient part of the cycle, motor cycle, automobile, aeroplane or other vehicle, machine or apparatus to which the invention is applied. A plunger or the like 7' is slidably mounted within. or between one or more guides or lugs j fitted or formed on the clamp, clip or other support (Z carrying the lever a. The lever a is connected intermediate its ends to the adjacent end of the member f by one or more links 9 which is or are pivoted at It to said lever and at i to said end of the member.

The member 7 operated by the lover a, 0 fits snugly within or between the guide or guides to slide in a straight path, and is connected to the Bowden wire mechanism. Thus, the plunger or the like f is secured to the inner wire j of the Bowden wire mechanism such as by means of the nipple 7", while the guide or guides 7' provides or provide an abutment for the adjacent end of the outer member is of the mechanism.

The apparatus described above may be so arranged that the two levers a can be temporarily locked to one another to move in unison if and when desired. The device may be constructed as a single unit or it can be composed of more than two units.

What I claim is 1. A Bowden wire control, comprising a clip, an operating lever pivotally connected at one end to the clip, a guide carried by said clip, a member slidably mounted in the guide and connected to the wire, said memher being a hollow sleeve with one end open and the ,other closed to retain the end of the wire and a link pivotally connected to the lever and to said member.

2. A Bowden wire control, comprising a clip, an operating lever pivotally connected at one end to the clip, a guide carried by said clip, a member slidably mounted in the guide and connected to the wire, said guide being formed to limit movement of the member in one direction, and means connecting the member and the operating lever.

3. A Bovvden wire control, consistinv of a two part clip, twin operating levers aving one end pivoted to said clip, a tubular guide secured to said clip and having one end open and the other closed, a hollow sleeve member fitting in said guide having an open end connected with the operating levers and having a closed end abutting against the closed end of said guide and serving to retain the end of a wire in position.

In testimony whereof I have hereunto signed my name.

ARTHUR EDWARD SENTINELLA.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

